<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表单</title>
</head>
<body>
<h3>登录表单</h3>
  <form action="https://www.baidu.com" method="post">
    <input type="text" name="username" placeholder="请输入用户名"><br>
    <input type="password" name="pwd" placeholder="请输入密码" >
    <input type="submit" value="登录">
  </form>
</body>
</html>